Roll paper cutter



Jufic 28,1932. J. w, MCCLINTOCK 1,865,399

ROLL PAPER CUTTER Fild April 22, 1929 l 2% F 7 f6 1 25.

Patented June 28, 1932 UNlTE-D STATES PATENT QFFICE JAMES W. MCCLINTOCK,OF LOS ANGELES, CALIFORNIA, ASSIGNOB 'IO E-Z REACH PAPER CUTTERCORPORATION, LTD., OF LDS ANGELES, CALIFORNIA, A CORPORATION 0FCALIFORNIA ROLL PAPER CUTTER- Application filed April 22,

My invention relates to a roll paper cutter and has for its principalobject, the provision of a relatively simple, inexpensive and convenientdevice that receives and supports the web portion of the paper as it isunwound from a roll, and said device being provided with an adjustableplate that functions as a straight edge against which the web of papermay be engaged and-torn 0E.

Further objects of my invention are, to provide a roll paper cutterhaving a spring held roller, over which the web of paper passes beforeit reaches the straight edge, and, to combine with said roller a gravitymember that functions to move the end of the web of paper downwardlyaway from the straight edge, against which said web is torn, therebymoving the end of the web into position where it may be convenientlygrasped between the thumb and fingers when a subsequent portion of theroll of paper is to be unwound and torn off.

My present invention is an improvement upon the roll paper cuttersforming the subj ect matter of my co-pending patent applications filedMarch 22nd, 1928, Serial No. 263,637, and Serial No. 284,423, filed June11th, 1928.

With the foregoing and other objects in view, my invention consists incertain novel features of construction and arrangement of parts thatwill hereinafter be more fully described and claimed and illustrated inthe accompanying drawing, in which:

Fig. l is a top plane view of a roll paper cutter embodying theprinciples of my invention.

Fig. 2 is a cross section taken on the line 22 of Fig. 1.

Fig. 3 is an end elevational view of the roll paper cutter.

Fig. 4 is a cross section taken on the line 4.-4 of Fig. 2.

Referring by numerals to the accompanying drawing, which illustrate, apractical em- 1929. Serial No. 357,113.

bodiment of my invention, 10 designates a metal plate having its endportions bent at right angles to form outwardly projecting horizontallydisposed end plates 11.

Formed in the rear portions of these end plates are slots 12 that areinclined approximately fifteen or twenty degrees relative to a verticalplane and loosely arranged in said slots are trunnions 13 that projectfrom the end of a small roller 14, which latter is prefeliilbly formedof wood, hard rubber or the li e.

Arranged on the outer face of the end plates 11 in front of the slots 12are springs 14 that are secured to said plates in any suitable mannerand the free rear ends of said springs are bent into up-turned hooks 15that engage beneath the trunnions 18 and thus said trunnions areyieldingly held at the upper ends of slots 12.

A small wire rod 16 occupies a position in front of and parallel withthe roller 14 and the end portions of this wire rod are bent rearwardlyat right angles to form short arms 17, the rear portions of which areadapted to rest on the end portions of the periphery of roller 14 andthe terminal portions 18 of these arms are journaled in apertures thatare formed in end plates 11 above the slots 12.

Formed in the front portions of the plates 11 are short verticallydisposed slots 19, and passing through said slots are threaded pins 20that are secured in any suitable manner to the end portions of a metalplate 21, which latter extends from one end plate to the other.

Located on the outer portion of each threaded pin is a washer 22 thatbears against the outer face of the corresponding end plate 11 andbearing against said washer is a winged nut 23.

Formed integral. with the ends of plate 21 and projecting at rightangles therefrom and preferably on opposite sides of the pins 20 areears 24 which normally bear against the inner faces of the end plates.

One of the longitudinal edges of plate 21 is provided with a bevelededge 25 and the opposite longitudinal edge is serrated, as desig natedat 26.

The material in the longitudinal center of plate 21 is pressed outwardlyon one side to form a centrally arranged reenforcing rib 27.

By providing the ends of plate 21 with the threaded pins that projectthrough the slots 19 and mounting the winged nuts on the outer ends ofsaid threaded pins, the plate 21, which functions as a straight edgeagainst which web of paper is torn, may be easily and convenientlyadjusted so as to occupy different angular positions and owing to thelength of the slots 19 the plate may be ad justed vertically for alimited distance.

My improved roll paper cutter is secured to a suitable support such as acounter or show case above a roll of wrapping paper and the web of paperfrom said roll is brought upwardly behind the roller 14, thence oversaid roller and the end of said web projects forwardly and downwardlyfrom the top of the roller with the end of said web positioned a shortdistance below the plate 21 where said end may be readily graspedbetween the thumb and fingers.

The weight of the wire rod 16 resting on the web of paper at the pointwhere it passes over the ends of roller 14 holds the web of paper onsaid roller and the intermediate portion of the wire rod 16 forces theend of the web of paper downwardly away from the plate 21, asillustrated in Fig. 2.

To unwind and tear off a portion of the web of paper the end of the webthat projects downwardly and forwardly from the rod 16 is engagedbetween the thumb and fingers and the web of paper is drawn outwardlyuntil the desired amount has been unrolled and during this unwindingoperation the web of paper passes readily over the roller 14 and whichlatter is yieldingly supported by the springs 14.

Plate 21 is held in fixed position by the winged nuts 23 that aretightened on the threaded rods 20 and to tear off the withdrawn portionof the paper, the latter is drawn upward with a quick movement so thatit engages the outer edge of the plate 21 and thus the web of paper istorn off along the straight tearing edge of the plate. Plate 21 may beadjusted vertically by raising or lowering the threaded pins 20 in theslots 19 and said plat-e may be shifted into various angular positionsinasmuch as the threaded pins 20 function as trunnions and after properadjustment, the plate is locked by tightening the winged nuts 23 andwhich action clamps the end walls 11 between the washers 22 and the ears24 that project at ri ht angles from the ends of plate 21.

he tearing plate may be adjusted so as to present the beveled tearingedge 25 or the serrated tearing edge 26.

Thus it will be seen that I have provided a roll paper cutter that isrelatively simple in construction, inexpensive of manufacture and veryeffective in performing the functions for which it is intended.

It will be understood that minor changes in the size, form andconstruction of the various parts of my improved roll paper cutter maybe made and substituted for those herein shown and described withoutdeparting from the spirit of my invention, the scope of which is setforth in the appended claims.

I claim as my invention:

1. In a roll paper cutter, a horizontally disposed U-shaped frameprovided in its ends with slots, a roller, trunnions projecting from theends thereof through said slots, springs mounted on the ends of saidframe for normally holding the trunnions at the upper ends of saidslots, a paper engaging rod arranged between the ends of said frame infront of said roller, crank arms on the ends of said rod, the upper rearends of which crank arms are journaled in the ends of the frame abovethe bearings for the trunnions therein, the rear portions of which crankarms bear on the upper surfaces of the ends of said roller and thatportion of the rod between the crank arms occupying a position in frontof and parallel with said roller.

2. In a roll paper cutter, a horizontally disposed U-shaped frameprovided in its ends with slots, a roller, trunnions projecting from theends thereof through said slots, springs mounted on the ends of saidframe for normally holding the trunnions at the upper ends of saidslots, a paper engaging rod arranged between the ends of said frame infront of said roller, crank arms on the ends of said rod, the upper rearends of which crank arms are j ournaled in the ends of the frame abovethe bearings for the trunnions therein, the rear portion of which crankarms bear on the upper portions of the ends of said roller, that portionof the rod between said crank arms occupying a position in front of andparallel with said roller, and a tearing plate adjustably and reversiblymounted on the ends of the frame and occupying a position above and infront of said roller and rod.

3. In a roll paper cutter, a horizontally disposed frame comprising arear plate and a pair of parallel end plates, there being inclined slotsformed in the rear portions of the end plates, a paper supportingroller, trunnions projecting from the ends of said roller through saidslots, springs arranged on the outer faces of said end plates fornormallyretaining said trunnions at the upper ends of said slots, theforward portions of said end plates being rovided with slots, a tearingplate arranged between the front portions of said end plates andoccupying a position above and in front of said roller, said plate beingprovided with one straight sharp tearing edge and with a serratedtearing edge, threaded pins projecting from the ends of said tearingplate through the slots in the front portions of said end plates, nutslocated on said threaded pins outside said end plates and earsprojecting from the ends of said tearing plate and bearing against theinner faces of the end plates of the frame.

In testimony whereof I afiix my signature.

JAMES W. MGGLINTOCK.

